Table 2 Univariate analysis and multivariate analysis of risk factors for tumor recurrence in surgery and ESD for curative resection groups

Group (ESD)

9.763

1.187–80.296

0.034

14.753

1.619-134.461

0.017

Age (≥ 65)

0.683

0.184–2.538

0.449

Sex(female)

0

0.998

Lesion a(≥ 2 cm)

6.920

1.380-34.717

0.019

9.347

1.665–52.485

0.011

Lesion b(≥ 2 cm)

1.212

0.237–6.188

0.818

Ulcer (+)

0.387

0.047–3.211

0.379

Location (a, Middle)

0.232

0.026–2.037

0.118

0.214

0.021–2.213

0.196

Location (a, Lower)

0.206

0.040–1.074

0.061

0.167

0.028–1.005

0.051

Location (b, Middle)

1.054

0.164–6.759

0.956

Location (b, Lower)

0.799

0.134–4.497

0.777

Histology (a, undifferentiated carcinoma)

1.057

0.204–5.490

0.947

Histology (a, mixed-type carcinoma)

0

0

0.999

Histology (a, dysplasia¹)

0

0

0.998

Histology (b, undifferentiated carcinoma)

3.706

0.486–28.269

0.206

Histology (b, mixed-type carcinoma)

0

0

0.999

Histology (b, dysplasia¹)

3.841

0.711–20.742

0.118

Depth of invasion(T1b)

0

0

0.998